Mirror System Buick Regal V

Fastener Tightening Specifications

Fastener Tightening Specifications

Adhesives, Fluids, Lubricants, and Sealers

Adhesives, Fluids, Lubricants, and Sealers

Scheme 1

Scheme 2

Scheme 3

Symptoms - Mirrors

Note. The following steps must be completed before using the symptom tables.

1. Perform the «Diagnostic System Check - Vehicle»(/buick/regal/v-2009-2013/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) before using the Symptom Tables in order to verify that all of the following are true: There are no DTCs set. The control modules can communicate via the serial data link.
2. Review the system operation in order to familiarize yourself with the system functions. Refer to the following system descriptions: «Outside Mirror Description and Operation»(/buick/regal/v-2009-2013/remont/mirrors/#mirror-system) «Automatic Day-Night Mirror Description and Operation»(/buick/regal/v-2009-2013/remont/mirrors/#mirror-system)

Visual/Physical Inspection

1. Inspect for aftermarket devices which could affect the operation of the system. Refer to «Checking Aftermarket Accessories»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__checking-aftermarket-accessories) .
2. Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom

1. «Heated Mirrors Malfunction»(/buick/regal/v-2009-2013/remont/mirrors/#mirror-system)
2. «Automatic Day-Night Mirrors Malfunction»(/buick/regal/v-2009-2013/remont/mirrors/#mirror-system)
3. «Power Mirror Malfunction»(/buick/regal/v-2009-2013/remont/mirrors/#mirror-system)

Diagnostic Instructions

1. Perform the «Diagnostic System Check - Vehicle»(/buick/regal/v-2009-2013/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/buick/regal/v-2009-2013/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/buick/regal/v-2009-2013/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

Diagnostic Fault Information

Circuit/System Description

The R/DEFOG relay supplies voltage to the outside rearview mirror heater elements based on the current state of the rear window defogger. The relay supplies B+ through the driver/passenger mirror heating element control circuit when a request is received.

Reference Information

Schematic Reference

Outside Rearview Mirror Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Outside Mirror Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Vehicle running, press the rear window defogger switch. Verify the rear window defogger turns ON and the rear window becomes warm. If the rear window defogger does not turn on, refer to «Rear Window Defogger Malfunction»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows) .
2. Verify both the left and right outside mirror glass becomes warm.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the A9 outside rearview mirror.
2. Wait 1 minute, test for less than 10 ohms between the ground circuit terminal 4 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
3. Connect a test lamp between the heater element control circuit terminal 6 and ground.
4. Vehicle running, operate the rear window defogger ON and OFF with the rear defogger switch. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to voltage. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance.
5. If all circuits test normal, test or replace the E17 outside rearview mirror glass.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Outside Rearview Mirror Glass Replacement

1. Perform the «Diagnostic System Check - Vehicle»(/buick/regal/v-2009-2013/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/buick/regal/v-2009-2013/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach
3. «Diagnostic Procedure Instructions»(/buick/regal/v-2009-2013/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category

The inside rearview mirror uses 2 photocell sensors. One sensor is the rear light sensor, located on the face side of the mirror, facing the rear of the vehicle. The rear light sensor is used to determine light conditions present at the mirror face. The other sensor is the front light sensor, located on the backside of the mirror, facing the front of the vehicle. The front light sensor is used to determine the exterior light conditions at the front of the vehicle. With a low exterior light condition detected by the front light sensor and a high light condition from the rear light sensor, the inside rearview mirror will automatically darken the face of the inside rearview mirror.

With the gear selector lever in the REVERSE position and the engine running, backup lamp control voltage is supplied as an input to the inside rearview mirror. The mirror monitors this input to disable the automatic day-night feature. This allows the driver to see objects in the mirror clearly when backing up, regardless of the rear light sensor status.

Schematic Reference

1. «Inside Rearview Mirror Schematics»(/buick/regal/v-2009-2013/remont/mirrors/#mirror-system)
2. «Outside Rearview Mirror Schematics»(/buick/regal/v-2009-2013/remont/mirrors/#mirror-system)

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Automatic Day-Night Mirror Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON, headlamps ON, vehicle in PARK, cover the front light sensor with a towel or other suitable item. Shine a flashlight at the rear light sensor while observing the inside rearview mirror face. The inside rearview mirror face should dim.
2. Engine running, park brake applied, place the transmission in REVERSE. The inside rearview mirror face should transition from dim to bright. If the mirror does not transition between the bright and dim states, refer to Inside Rearview Mirror Dimming Malfunction.

Inside Rearview Mirror Dimming Malfunction

1. Ignition OFF, disconnect the harness connector at the A10 inside rearview mirror.
2. Wait 1 minute, test for less than 10 ohms between the ground circuit terminal 5 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 2 and ground. If the test lamp does not illuminate test the ignition circuit for an open/high resistance or short to ground.
4. Engine running, park brake applied, vehicle in REVERSE, verify that a test lamp illuminates between the backup lamp control circuit terminal 1 and ground. If the test lamp does not illuminate test the control circuit for an open/high resistance or short to ground. If the circuit tests normal, refer to «Backup Lamps Malfunction (Automatic Transmission)»(/buick/regal/v-2009-2013/remont/exterior-lights/#lighting-system) , «Backup Lamps Malfunction (Manual Transmission)»(/buick/regal/v-2009-2013/remont/exterior-lights/#lighting-system) .
5. If all circuits test normal, test or replace the A10 inside rearview mirror.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Inside Rearview Mirror Replacement»(/buick/regal/v-2009-2013/remont/mirrors/#mirror-system)
2. «Outside Rearview Mirror Glass Replacement»(/buick/regal/v-2009-2013/remont/mirrors/#mirror-system)

1. Perform the «Diagnostic System Check - Vehicle»(/buick/regal/v-2009-2013/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/buick/regal/v-2009-2013/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach
3. «Diagnostic Procedure Instructions»(/buick/regal/v-2009-2013/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category

The outside rearview mirror switch controls the outside rearview mirrors based on the position of the mirror selector switch and which movement position is selected. The outside rearview mirror switch has four positions: up, down, left, and right. B+ is applied to the switch from the power mirror fuse and when a movement position switch is selected, voltage is sent to the commanded mirror via a mirror control circuit. The opposite mirror control circuit acts as a ground circuit for the bi-directional mirror motor. Ground is the applied through the switch.

Schematic Reference

Outside Rearview Mirror Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Outside Mirror Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON, with the mirror selector switch in the DRIVER position, command the mirrors UP, DOWN, LEFT, and RIGHT using the mirror directional switch. The driver mirror should move in the commanded direction.
2. With the mirror selector switch in the PASSENGER position, command the mirrors UP, DOWN, LEFT, and RIGHT using the mirror directional switch. The passenger mirror should move in the commanded direction.

1. Ignition OFF, disconnect the harness connector at the S52 outside rearview mirror switch.
2. Wait 1 minute, test for less than 10 ohms between the ground circuit terminal 5 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 4 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
4. Ignition OFF, connect the harness connector at the S52 outside rearview mirror switch.
5. Disconnect the harness connector at the appropriate A9 outside mirror.
6. Connect a test lamp between the control circuit terminal 2 and the control circuit terminal 8.
7. Operate the vertical switch UP and DOWN. The test lamp should turn ON when commanding the UP and DOWN states. If the test lamp remains OFF during either of the commands, test for a short to voltage, short to ground, or an open/high resistance on both control circuits. If the circuits test normal, replace the S52 outside mirror switch.
8. Connect a test lamp between the control circuit terminal 7 and the control circuit terminal 8.
9. Operate the horizontal switch LEFT and RIGHT. The test lamp should turn ON when commanding the LEFT and RIGHT states. If the test lamp remains OFF during either of the commands, test for a short to voltage, short to ground, or an open/high resistance on both control circuits. If the circuits test normal, replace the S52 outside mirror switch.
10. If all circuits test normal, test or replace the M77 outside rearview mirror motor.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Outside Rearview Mirror Inner Actuator Replacement»(/buick/regal/v-2009-2013/remont/mirrors/#mirror-system)
2. «Outside Remote Control Rearview Mirror Switch Replacement»(/buick/regal/v-2009-2013/remont/mirrors/#mirror-system)

Scheme 4

Outside Rearview Mirror Replacement

Scheme 5

Outside Remote Control Rearview Mirror Switch Replacement

Scheme 6

Outside Rearview Mirror Inner Actuator Replacement

Scheme 7

Outside Rearview Mirror Glass Replacement

Scheme 8

Outside Rearview Mirror Housing Replacement

Scheme 9

Inside Rearview Mirror Replacement

Inside Rearview Mirror Bracket Installation

1. Determine the location of the mirror mounting base by marking the outside/inside of the windshield with a wax pencil where the base was previously located. If it is not clear where the base was located, use the following steps to determine where the base should be installed: Using a measuring tape, measure the distance between the windshield pillars at the windshield blackout line. Using a marking pencil, halfway between the windshield pillars, draw a centerline (1) on the windshield from the roof panel to the windshield base. Draw a perpendicular line intersecting the centerline (2) at that location. The bottom center of the mirror mounting base will be at the intersection of these lines.
2. Clean the inside windshield glass thoroughly to remove all old adhesive.
3. Clean mirror mounting base thoroughly to remove all of the old adhesive.
4. Using the Inside Mirror Adhesive Kit, or equivalent to apply a small amount of activator to the mounting surface of the mirror mounting base. Refer to «Adhesives, Fluids, Lubricants, and Sealers»(/buick/regal/v-2009-2013/remont/mirrors/#mirror-system__adhesives-fluids-lubricants-and-sealers) .
5. Apply a small amount of activator to the windshield where the mounting base is to be installed.
6. Allow the activator to dry 5 minutes.
7. Apply 1 drop of adhesive to the center of the mirror mounting base.
8. Immediately apply the mounting base to the windshield, ensuring that the mounting base aligns correctly to the marks made on the outside of the windshield.
9. Hold the mounting base firmly in place for 1 minute.
10. Allow the adhesive to set for 15 minutes before installing the rearview mirror.
11. Clean the wax pencil lines from the exterior surface of the glass.
12. Install the mirror to the mirror mounting base. Refer to «Inside Rearview Mirror Replacement»(/buick/regal/v-2009-2013/remont/mirrors/#mirror-system) .

Inside Rearview Mirror with the Automatic Day-Night Feature System Operation

The inside rearview mirror uses 2 photocell sensors. One sensor is the headlight sensor, located on the face side of the mirror. The headlight sensor is used to determine light conditions present at the mirror face. The other sensor is the ambient light sensor, located on the rear of the mirror or windshield side. The ambient light sensor is used to determine the exterior light conditions. With a low exterior light condition detected, and a high light condition from behind the car, at the headlight sensor, the inside rearview mirror will automatically darken the face of the mirror.

In the daytime, the mirror is in a normal state because of the high exterior light condition that is indicated by the ambient light sensor. With the gear selector lever in the REVERSE position and the engine running, backup lamp supply voltage is supplied as an input to the inside rearview mirror. The mirror monitors this input to disable the automatic day-night feature. This allows the driver to see objects in the mirror clearly when backing up, even during the night.

Driver Outside Rearview Mirror with Automatic Day-Night System Operation (If Equipped)

The automatic day-night feature of the driver outside rearview mirror is controlled by the inside rearview mirror. The inside rearview mirror supplies control and low reference to the driver outside rearview mirror. At night, with the automatic day-night feature enabled, the driver outside rearview mirror will automatically darken with the inside rearview mirror to reduce glare from headlamps behind the vehicle.

The power mirror system consists of the following components

1. Mirror direction switch - Controls the left, right, up and down movements of the mirrors
2. Mirror select switch - Allows the operator to select the mirror to be moved
3. Left outside mirror - Contains both the horizontal and vertical mirror motors
4. Right outside mirror - Contains both the horizontal and vertical mirror motors

Each of the outside power mirrors contains 2 motors. The up-down motor operates the vertical directions and the left-right motor operates the horizontal directions. Each of the power mirror motors are internally circuit breaker protected.

The outside mirror switch incorporates a mirror select switch and a 4 position mirror direction switch.

The mirror select switch allows the driver to select the mirror to be moved by turning the switch to L position enabling the left outside mirror or turning the switch to R position enabling the right outside mirror.

The mirror direction switch is a 4 position switch that allows the operator to move the selected mirror up, down, left or right.

The outside mirror switch receives power through the battery positive voltage circuit from the underhood fuse block. The outside mirror switch also receives a constant ground.

The 4 positions of the direction switch have multiple switch contacts. When not in use, the directional contacts are isolated from any circuit. Each of the contacts are connected to opposing sides of the appropriate mirror motors through the selector switch. The selector switch interrupts or completes these circuits depending on the position of the selector switch, L or R.

If the mirror select switch is placed in the L position and the up switch is pressed, battery voltage will be supplied to the driver outside mirror vertical motor through the driver mirror motor up control circuit and return to the mirror switch through the driver mirror motor left/down control circuit, then to ground and the mirror will move up. If the down switch is pressed, the driver mirror motor left/down control circuit supplies battery voltage and the driver mirror motor up control circuit completes the path to the mirror switch, then to ground and the mirror will move down.

The remainder of the mirror functions operate in the same manner as described above. Placing the mirror control switch in opposing positions, left/right or up/down, will reverse the voltage polarity to the mirror motor, utilizing the same circuits and the mirror will move accordingly.

Heated Mirrors

The heated mirrors are controlled through the rear defog relay. Whenever the rear window defogger is turned ON, battery voltage is supplied to the mirror heater elements through the left and right mirror heater element control circuits.

See also:
• Diagnostic System Check - Vehicle
• Checking Aftermarket Accessories
• Testing for Intermittent Conditions and Poor Connections
• Strategy Based Diagnosis
• Diagnostic Procedure Instructions
• COMPONENT CONNECTOR END VIEWS -- INDEX
• Circuit Testing
• Connector Repairs
• Wiring Repairs
• Control Module References
• Rear Window Defogger Malfunction
• Diagnostic Repair Verification
• Backup Lamps Malfunction (Automatic Transmission)
• Front Side Door Trim Panel Replacement
• Fastener Caution
• Glass and Sheet Metal Handling Warning
• Outside Mirror Description and Operation
• Adhesives, Fluids, Lubricants, and Sealers